products & services brochure 2016-17 brochure 2017 - 2018 · n-house i microwave antenna design...
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Products & Services Brochure 2016-17
Microwave Antennas, Subsystems and Consultancy
Ultra Wideband Antennas for Electronic Warfare
Hi Reliability Antennas for Test and Measurement
Brochure 2017 - 2018
© Crown Copyright
MICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
About Us
At the forefront of antenna design and manufacture since 1973, the Company excels in the research, design and manufacture of ultra wideband microwave antennas, subsystems and associated microwave components. It provides a flexible and responsive service utilising in-house microwave engineering expertise to successfully satisfy challenging commercial and defence antenna projects.
PRODUCTSWith more than 40 years of microwave engineering, design and manufacturing expertise of single, dual linear and circularly polarised receive and transmit antennas, Steatite has a proven capability to provide a wide range of high quality COTS ultra wideband antenna products operating within the range 0.01 and 500 GHz generally not matched elsewhere. Bespoke designs or modifications are regularly accommodated and form part of the Company’s extensive offering.
SUBSYSTEMSIn-house microwave antenna design and engineering capabilities, backed by antenna testing facilities provide a comprehensive all weather antenna and subsystem solution to many demanding land, sea and airborne applications typically from 0.5 to 40 GHz.
CONSULTANCYSteatite regularly undertakes antenna related research, design and manufacture for military and civil clients including development studies, prototyping and technical concept studies. Technical consultancy and in-service support form part of its regular portfolio of activities. The Company has many years’ experience of providing innovative customised, ultra wideband antennas and subsystems to the global defence, surveillance and sensor markets.
CAPABILITIESThe Company uses leading commercial electromagnetic design software CST Microwave® along with dedicated in-house algorithms, enabling it to analyse and optimise a wide range of antenna and microwave component designs. Whilst mechanically, a mixture of design and analysis tools including SolidWorks®, Cosmos and FEA are used. The Company has formal quality accreditation to ISO 9001:2008.
Steatite AntennasCroft Business Park · Leominster · Herefordshire · HR6 0QF · UK
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TEL: +44 (0)1568 612138
MICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
01568+44 (0)1568 617920
Unit 15, Croft Business Park, Leominster, Herefordshire, HR6 0QF, UK
MICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
Our Markets
ELECTRONIC WARFARE AND SIGINT
Ultra wideband antennas typically within the range 0.01 to 40 GHz supplied as COTS items or custom antenna subsystems are ideally suited to meet the challenging demands of land, sea and airborne platforms.
Applications include: ELINT & COMINT Systems, EW and radar threat simulators, antennas used in Electronics Counter Measures (ECM), Radar Warning Receivers (RWR), Spectrum Management Antenna Arrays, and IED Jamming Systems.
A wide range of polarisations are offered including, single, dual polar, circular and dual circular. Steatite provides antennas and subsystems with shaped patterns, including directional, omni-directional, sectoral phase matching antenna arrays and high power antenna solutions for EW and radar simulation.
EMAIL: [email protected] WEB: www.steatite.co.uk
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MICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
WIDEBAND HORNANTENNAS
Wideband-octave and multi-octave horn antennas are provided including rectangular, conical, multimode, sectoral, double / quad ridged, and dual polarised. Typically applicationsinclude direction finding and ECM.
ULTRA WIDEBAND OMNI-DIRECTIONAL ANTENNAS
Highly efficient vertical and slant polarised antennas are available, with azimuth ripple typically <+/- 1 dB on horizon. Suitable for EW, SIGINT, direction finding and spectrum management applications.
CAVITY BACKEDSPIRAL ANTENNAS
Providing broad constant beamwidth with low squint, smooth radiation patterns and purity of circular polarisation. Amplitude and / or phase matching is available. Typical airborne and ground based applications include 360° direction finding, spectrum management, radar warning receivers and electronic warfare support measures.
SINUOUS ANTENNAS
Simultaneously handle signals of any two orthogonal linear polarisations and simultaneous left and right handed circular polarisations dependent on antenna design. This provides intercept opportunities for a wide range of arbitrarily polarised signals, also giving a wide bandwidth and broad beamwidth.
ULTRA WIDEBANDREFLECTOR ANTENNAS
High gain and low sidelobes with low VSWR levels, for receive and transmit applications including ELINT, direction finding, electronic warfare and radar threat emitters, meteorological sensors and point-to-point military microwave communication systems.
SPINNING DF ANTENNAS
0.5 to 18 GHz direction finding and omni-directional high performance spinning antenna subsystems. Typically used for ELINT applications, the antennas are mounted on high speed rotating direct-drive positioners with complex scan control and housed in RF-transparent, low-loss radomes.
© Airbus S.A.S 2013
Our Markets
Steatite AntennasCroft Business Park · Leominster · Herefordshire · HR6 0QF · UK
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TEL: +44 (0)1568 612138
MICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
TEST AND MEASUREMENT
Waveguide COTS antennas 0.4 to 40 GHz and bespoke antenna solutions for precision measurement applications including EMC radiated and immunity testing.
Providing antennas that allow multi-octave frequency sweeps with a single unit, whilst “High Gain antennas” offer low side lobes and consistent performance. The demand for high field strengths is catered for by a suite of HiRF antennas that produce high field strengths.
A unique focussing arrangement of the antennas means it is possible to produce fields of 3000 V / m using 3kW amplifiers, resulting in reduced system costs.
HiRF ANTENNAS
A family of specialised high power HiRF antennas which cover the frequency range 0.4 - 18 GHz. These are capable of reaching ultra-high field strengths in the near field.
FORD MOTOR COMPANY RECOGNISED
Two of Steatite’s horn antennas have been found to be acceptable when performing EMC testing to EMC-CS-2009. They facilitate the generation of 600 V/m with <500 watts forward power.
QSH-1.1-1.7-N-20 (QSH6B20WA)QSH-2.2-3.3-N-20 (QSH9AB20WA)
ULTRA WIDEBAND DOUBLERIDGED HORN ANTENNAS
Double ridged horn antennas for ultra wide band performance over many octaves. Suitable for a range of high and medium power applications.
WIDEBAND HIGH GAIN HORN ANTENNAS
High gain, larger aperture horn antennas for high and medium power applications with bandwidths less than an octave.
PYRAMIDAL STANDARD GAIN HORN ANTENNAS
Designed for applications for precisegain requirements. Typically 10dBi to 20dBi.
Omnidirectional Antennas
EMAIL: [email protected] WEB: www.steatite.co.uk
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MICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
ABOUT OUR OMNIDIRECTIONALANTENNAS
Steatite’s COTS and custom designed Omnidirectional antennas provide wide bandwidth between the range 0.01 to 40 GHz.
Vertical and slant polarised antennas are available and suitable for EW, SIGINT, Direction Finding and Spectrum Management applications. As with other Steatite products, bespoke designs or modifications may be accommodated.
Frequency(GHz)
Catalogue No.Gain (dBi)
Powerc.w. (W)
VSWR(Typical)
Polarisation Connector
0.01 to 1 QOM-SL-0.01-1-N-SG-R 0 to -14 Rx Only <3.0:1 Vertical N
0.8 to 40 QOM-SL-0.8-40-K-SG-L -2.2 to 6.9 40 <3.2:1 Vertical K
0.9 to 20 QOM-SL-0.9-20-S-SG-R 0 to 6.3 40 <3.2:1 Vertical SMA
2 to 18 QOM-SL-2-18-S-SG-R 0.2 to 7.8 40 <2.5:1 Vertical SMA
2 to 18 QOM-ST-2-18-S-SG-R -4.3 to 8.4 50 <2.5:1 Slant SMA
26 to 40 QOM-SL-26-40-K-SG-R 2 to 4 10 <2.0:1 Vertical K
TYPICAL SPECIFICATIONS
Horn Antennas
Steatite AntennasCroft Business Park · Leominster · Herefordshire · HR6 0QF · UK
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TEL: +44 (0)1568 612138
ABOUT OUR HORN ANTENNAS
Steatite provides a wide range of COTS and custom designed, standard gain and wideband horn antennas, 0.17 to 500 GHz, with typical gain values from 10 to 20 dBi. Higher gain horn antennas are also available typically >20 dBi.
A variety of COTS and custom designed wideband-octave and multi-octave horn antennas are provided including rectangular, conical, multimode, sectoral, double & quad ridged, and dual polarised. Horn antennas can be adapted to meet customer specific requirements, for example waveguide-flanged and high power transition versions are available.
The list below is not exhaustive and different connector versions are available. Applications include EW, SIGINT, Test & Measurement including EMC immunity and HiRF testing. As with other Steatite products, bespoke designs or modifications may be accommodated.
Frequency (GHz) WG / WR Catalogue No. Gain
(dBi)Power
c.w. (W)VSWR
(Typical) Connector
0.17 to 4.0 -- QWH-SL0.17-4-A-SG 3.6 to 15.9 1400 <1.5:1 7:16 DIN
0.37 to 0.47 00 / 2300 QSH-SL-0.37-0.47-N-10 9.4 to 11.5 500 <1.6:1 N
0.40 to 1.6 -- QWH-SL-0.4-1.6-N-SG-R 12.5 to 14.5 500 <1.7:1 N
0.50 to 0.75 2 / 1500 QSH-SL-0.5-0.75-N-15 12.5 to 15.5 400 <1.5:1 N
0.50 to 2.0 -- QWH-SL-0.5-2-N-SG 7.4 to 14.5 250 <1.8:1 N
0.60 to 1.0 3 / 1150 QSH-SL-0.6-1-N-10 7.7 to 12.2 400 <1.5:1 N
0.75 to 1.1 4 / 975 QSH-SL-0.7-1.1-N-15 13.6 to 17.1 400 <1.6:1 N
0.80 to 4.0* -- QWH-DL-0.8-4-N-SG-L 7.2 to 13.5 40 <2.3:1 x2 N
0.8 to 18.0 5 / 770 QWH-SL-0.8-18-N-SG 2.8 to 18.0 500 <2.0:1 N
0.90 to 1.4 5 / 770 QSH-SL-0.9-1.4-N-20 18.0 to 22.0 400 <1.6:1 N
0.90 to 18.0* -- QWH-DL-0.9-18-S-SG-R 0.3 to 13.3 40 <2.5:1 x2 SMA
1.0 to 4.2 -- QWH-SL-1-4.2-A-HG 13.6 to 18.4 1200 <2.0:1 7:16
1.0 to 8.0 -- QWH-SL-1-8-B-SG 6.0 to 17.0 1500 <1.4:1 7/8
1.0 to 18.0 -- QWH-SL-1-18-S-SG-R 1.3 to 12.8 40 <2.0:1 SMA
1.1 to 1.7 6 / 650 QSH-SL-1.1-1.7-N-20 18.8 to 21.7 300 <1.4:1 N
MICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
TYPICAL SPECIFICATIONS
The list below is not exhaustive and different connector options may be available.
*DL = Dual Linear.
Frequency (GHz) WG / WR Catalogue No. Gain
(dBi)Power
c.w. (W)VSWR
(Typical) Connector
1.4 to 2.2 7 / 510 QSH-SL-1.4-2.2-A-20 18.0 to 20.5 1800 <1.3:1 7/161.7 to 2.6 8 / 430 QSH-SL-1.7-2.6-A-20 18.4 to 21.8 1800 <1.3:1 7/162.0 to 4.0 -- QWH-SL-2-4-C-SG-R 16.4 to 18.1 750 <1.6:1 SC2.0 to 8.0 -- QWH-SL-2-8-N-SG-R 10.9 to 14.3 500 <1.5:1 N
2.0 to 18.0* -- QWH-DL-2-18-S-SG 3.9 to 15.9 40 <3.0:1 x2 SMA2.0 to 18.0 -- QWH-SL-2-18-S-SG-R 5.0 to 12.0 20 <2.5:1 SMA2.0 to 18.0 -- QWH-SL-2-18-N-HG-R 10.0 to 22.0 20 <2.5:1 SMA2.0 to 18.0 -- QWH-SL-2-18-N-SG-R 5.0 to 12.0 50 <2.5:1 N2.0 to 18.0 -- QWH-SL-2-18-N-HG-R 10.0 to 22.0 80 <2.5:1 N2.0 to 18.0* -- QWH-DL-2-18-N-SG-R 10.0 to 22.0 40 <2.5:1 x2 N2.0 to 18.0* -- QWH-DL-2-18-S-HG-R 10.0 to 22.0 40 <2.5:1 x2 SMA
2.2 to 3.3 9A / 340 QSH-SL-2.2-3.3-N-20 18.6 to 21.6 200 <1.4:1 N2.5 to 7.5 WRD250 QWH-SL-2.5-7.5-F-SG-R 10.0 to 14.0 2000 <1.3:1 WRD2502.6 to 4.0 10 / 284 QSH-SL-2.6-4-N-20 18.0 to 21.0 200 <1.4:1 N3.3 to 5.0 11A / 229 QSH-SL-3-5-N-15 14.8 to 17.8 180 <1.4:1 N3.9 to 5.9 12 / 187 QSH-SL-4-6-N-20 18.0 to 21.0 200 <1.6:1 N4.0 to 8.0 WRD350 QWH-SL-4-8-F-HG 18.0 to 20.0 2000 <1.3:1 WRD3504.9 to 7.1 13 / 159 QSH-SL-5-7-S-20 18.0 to 21.0 60 <1.4:1 SMA5.8 to 8.2 14 / 137 QSH-SL-6-8-S-20-R 18.0 to 21.0 50 <1.6:1 SMA
6.5 to 18.0 WRD650 QWH-SL-6.5-18-F-HG-CS 9.6 to 17.1 4000 <1.3:1 WRD6507.0 to 10.0 15 / 112 QSH-SL-7-10-S-20-R 18.0 to 21.0 50 <1.4:1 SMA7.5 to 18.0 WRD750 QWH-SL-7.5-18-F-20 19.0 to 21.0 2000 <1.3:1 WRD7508.2 to 12.4 16 / 90 QSH-SL-8-12-N-20 18.2 to 21.5 100 <1.3:1 N
10.0 to 15.0 17 / 75 QSH-SL-10-15-N-20 18.3 to 21.5 100 <1.4:1 N12.4 to 18.0 18 / 62 QSH-SL-12-18-F-20 18.0 to 21.0 1400 <1.15:1 UBR140
15.0 to 22.0 19 / 51 QSH-SL-15-22-S-20-R 17.0 to 21.0 20 <1.6:1 SMA18.0 to 26.5 20 / 42 QSH-SL-18-26-S-20-R 18.0 to 20.9 20 <1.4:1 SMA
18.0 to 40.0 -- QWH-SL-18-40-K-SG 12.3 to 14.8 20 <1.7:1 K18.0 to 40.0* -- QWH-DL-18-40-K-SG-R 12.0 to 16.9 20 <2.5:1 x2 K22.0 to 33.0 21 / 34 QSH-SL-22-33-K-20-R 18.0 to 21.0 20 <1.4:1 K26.5 to 40.0 22 / 28 QSH-SL-26.5-40-K-20 18.0 to 21.0 20 <1.2:1 K33.0 to 50.0 23 / 22 QSH-SL-33-50-V-20 18.0 to 21.0 5 <1.4:1 V40.0 to 60.0 24 / 19 QSH-SL-40-60-V-20 18.0 to 21.0 10 <1.6:1 V50.0 to 75.0 25 / 15 QSH-SL-50-75-V-20 18.0 to 21.0 5 <1.6:1 V60.0 to 90.0 26 / 12 QSH-SL-60-90-F-20 20.0 to 22.0 200 <1.2:1 WG F
75.0 to 110.0 27 / 10 QSH-SL-75-110-F-20 20.0 to 22.0 200 <1.2:1 WG F90.0 to 140.0 28 / 8 QSH-SL-90-140-F-20 20.0 to 22.0 100 <1.2:1 WG F
110.0 to 170.0 WR6.5 QSH-SL-110-170-F-20 25.0 to 27.0 50 <1.15:1 WG F140.0 to 220.0 WR5.1 QSH-SL-140-220-F-20 25.0 to 27.0 50 <1.2:1 WG F170.0 to 260.0 WR4.3 QSH-SL-170-260-F-20 25.0 to 27.0 20 <1.25:1 WG F220.0 to 330.0 WR3.4 QSH-SL-220-330-F-20 25.0 to 27.0 10 <1.3:1 WG F
260.0 to 400.0 WR2.8 QSH-SL-260-400-F-20 25.0 to 27.0 5 <1.35:1 WG F330.0 to 500.0 WR2.2 QSH-SL-330-500-F-20 25.0 to 27.0 5 <1.4:1 WG F
Horn Antennas
EMAIL: [email protected] WEB: www.steatite.co.uk
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MICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
*DL = Dual Linear.
Reflector AntennasMICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
Steatite AntennasCroft Business Park · Leominster · Herefordshire · HR6 0QF · UK
8
TEL: +44 (0)1568 612138
ABOUT OUR REFLECTOR ANTENNAS
Steatite provides a wide range of COTS and custom designed prime focus, offset, solid, and segmented reflector/feed antenna combinations. Steatite reflector antennas provide high gain and low sidelobes with low VSWR levels, for receive and transmit applications including ELINT, EW, Direction Finding, Threat Emitters, Meteorological Sensors and Communication Systems.
COTS and custom designed linear, circular polarised and dual polar feeds are available.
Additional offset and prime focus reflector/feed combinations can be supplied. As with other Steatite products, bespoke designs or modifications may be accommodated.
Frequency (GHz) Catalogue No. Gain (dBi) Beamwidth (3dB) Power c. w. (W)
8-12 QSR-340-A-152 & QSF-SL-8-12-S 26.3 to 30.9 4.4 to 7.5 40
6.5-18 QSR-340-A-152 & QWF-SL-6.5-18-N-R 24 to 29.7 3.5 to 9 400
6.5-18* QSR-340-A-152 & QWF-DL-6.5-18-S-R 24 to 29.7 3.5 to 9 40
7.5-18 QSR-340-A-152 & QWF-SL-7.5-18-F-R 26 to 33.2 3 to 7 500
12-18 QSR-340-A-152 & QSF-SL-12-18-S 30.5 to 33.4 3.5 to 4.5 20
18-26 QSR-340-A-152 & QSF-SL-18-26-S 33 to 36.8 2 to 3 20
18-40 QSR-340-A-152 & QWF-SL-18-40-K-R 32.9 to 39.5 1.5 to 3 30
18-40* QSR-340-A-152 & QWF-DL-18-40-K-R 33 to 39 1.4 to 3.2 20
26-40 QSR-340-A-152 & QSF-SL-26-40-F 36.8 to 40.5 1.5 to 2.1 5000
Frequency (GHz) Catalogue No. Gain (dBi) Beamwidth (3dB) Power c. w. (W)
2-8 QSR-600-A-228 & QWF-SL-2-8-N-R 22.3 to 31.9 3 to 11 400
6-8 QSR-600-A-228 & QSF-SL-6-8-N-R 27.5 to 30.5 4 to 5.5 50
8-12 QSR-600-A-228 & QSF-SL-8-12-S-R 31.5 to 35.4 2.5 to 3.5 40
2-18 QSR-600-A-228 & QWF-SL-2-18-S-R 18 to 31.4 4 to 16 20
2-18* QSR-600-A-228 & QWF-DL-2-18-S-R 18 to 36 2 to 18 40
6.5-18 QSR-600-A-228 & QWF-SL-6.5-18-N-R 28 to 38.5 2 to 5 400
7.5-18 QSR-600-A-228 & QWF-SL-7.5-18-N-R 31.2 to 38 2 to 3.9 400
600mm Prime Focus Reflectors (228mm focal length)
340mm Prime Focus Reflectors (152mm focal length)
TYPICAL SPECIFICATIONS
*DL = Dual Linear.
Reflector AntennasMICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
EMAIL: [email protected] WEB: www.steatite.co.uk
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0.5-2GHz Prime Focus Reflectors:
Frequency (GHz) Catalogue No. Gain (dBi) Beamwidth (3dB) Power c. w. (W)
18-40 QSR-600-A-228 & QWF-SL-18-40-K 38.5 to 43.6 1 to 2 20
18-40* QSR-600-A-228 & QWF-DL-18-40-K-R 37 to 41.8 1.2 to 1.8 40
Frequency (GHz) Catalogue No. Gain (dBi) Beamwidth (3dB) Power c. w. (W)
2-8 QSR-900-A-337 & QWF-SL-2-8-N-R 22 to 31.2 2.7 to 10.4 400
2-18* QSR-900-T4A-337 & QWF-DL-2-18-S-R 20 to 39 1 to 11 40
6.5-18 QSR-900-A-337 & QWF-SL-6.5-18-N-R 32.4 to 40 1.5 to 3 400
18-40 QSR-900-A-337 & QWF-SL-18-40-K 41 to 47 0.75 to 1.5 20
7.5-18 QSR-900-A-337 & QWF-SL-7.5-18-N-R 33 to 39 2 to 3.5 400
Frequency (GHz) Catalogue No. Gain (dBi) Beamwidth (3dB) Power c. w. (W)
2-8 QSR-1200-A-457 & QWF-SL-2-8-N-R 25.5 to 34.7 2.5 to 8 400
8-12 QSR-1200-A-457 & QSF-SL-8-12-S-R 37 to 41 1.4 to 2 40
2-18 QSR-1200-A-457 & QWF-SL-2-18-S-R 24.5 to 38 2 to 9 20
2-18* QSR-1200-A-755 & QWF-DL-2-18-S-R 25 to 41.5 1 to 7.5 40
6.5-18 QSR-1200-A-457 & QWF-SL-6.5-18-N-R 35.3 to 41.8 1.5 to 2.5 400
7.5-18 QSR-1200-A-457 & QWF-SL-7.5-18-N-R 37 to 44 1 to 2.2 400
18-40* QSR-1200-A-457 & QWF-DL-18-40-K-R 44 to 48.7 0.5 to 1 40
Frequency (GHz) Catalogue No. Gain (dBi) Beamwidth (3dB) Power c. w. (W)
1-2 QSR-1800-A-755 & QWF-SL-1-2-N 22.5 to 28.7 6 to 11 500
2-8 QSR-1800-A-755 & QWF-SL-2-8-N-R 37.2 to 40.9 1.5 to 4 400
6-8 QSR-1800-A-755 & QSF-SL-6-8-N-R 38.3 to 40.6 1.4 to 1.7 50
2-18* QSR-1800-A-755 & QWF-DL-2-18-S-R 28 to 42 0.7 to 6 40
Diameter (mm) Catalogue No. Gain (dBi) Beamwidth (3dB) Power c. w. (W)
1400 QSR-1400-A-546 & QWF-SL-0.5-2-N 14 to 24 6 to 35 400
3000 QSR-3000-A-1207 & QWF-SL-0.5-2-N-R 20.8 to 30 5.8 to 13.3 400
Focus Type
Frequency (GHz) Catalogue No. Gain (dBi) Beamwidth (3dB) Power
c. w. (W)
Offset* 0.9-18 QSR700-A-OST & QWH-DL-0.9-18-S-SG-R 17.5 to 34.5 1.5 to 34 (Az) 1.5 to 27 (EI) 40
Offset* 2-18 QSR700-A-OST & QWH-DL-2-18-S-SG-R 16.7 to 38.2 2 to 13.2 (Az) 1.9 to 1.5 (EI) 40
Prime 2-8 QSR-700-A-337 & QWF-SL-2-8-N-R 20.2 to 29.5 3 to 13 500
Prime 6.5-18 QSR-700-A-337 & QWF-SL-6.5-18-N-R 30.5 to 37.8 2 to 4 400
600mm Prime Focus Reflectors (228mm focal length) continued:
900mm Prime Focus Reflectors (337mm focal length):
1200mm Prime Focus Reflectors (457mm focal length):
1800mm Prime Focus Reflectors (755mm focal length):
700mm Reflectors:
*DL = Dual Linear.
HiRF AntennasMICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
Steatite AntennasCroft Business Park · Leominster · Herefordshire · HR6 0QF · UK
10
TEL: +44 (0)1568 612138
ABOUT OUR HiRF ANTENNAS
Steatite’s family of eight antennas covering the frequency range 0.4 - 18 GHz are capable of reaching ultra-high field strengths in the near field, that are not attainable using traditional systems. Steatite uses antenna arrays, lenses and extended gain antennas to achieve this performance.
Steatite HiRF antennas are able to focus RF energy at short distances from the aperture. 3 kV / m at one metre can be achieved in free field tests with 3 dB spot sizes 150mm or greater. Focussing is achieved by using dielectric lenses or by dividing the aperture up into four cophased smaller horn antennas.
Various mounting options are available ranging from fixed-mount to variable geometry. As with other Steatite products, bespoke designs or modifications may be accommodated.
Frequency(GHz) Catalogue No. / Description Gain at 1m
(dBi)VSWR
(Typical)Peak
Power (W) Connector
0.4 to 1 QPA-SL-0.4-1-A-SG · 700 V/m at 1 metre with an input power of 1.1 kW
11.5 to 15.5 <1.7:1 13kW 7:16 DIN
1 to 1.6 QPA-SL-1-1.6-A-SG · 3,000 V/m at 1 metre with an input power of 3.8 kW
18.9 to 20.6 <1.5:1 13kW 7:16 DIN
1.5 to 2.6 QPA-SL-1.5-2.6-A-SG · 3,000 V/m at 1 metre with an input power of 2.8 kW
20.3 to 22.0 <1.5:1 13kW 7:16 DIN
2.6 to 4 QSH-SL-2.6-4-C-SG-R · 3000 V/m at 1 metre with an input power of 2.85 kW
20.0 to 20.9 <1.5:1 13kW SC
4 to 6 QSH-SL-4-6-N-22-R · 3000 V/m at 1 metre with an input power of 2.3 kW
21.2 to 22.4 <1.5:1 5kW N
6 to 8 QSH-SL-6-8-N-22 · 3000 V/m at 1 metre with an input power of 2.0 kW
21.4 to 22.5 <1.5:1 5kW N
8 to 12 QSH-SL-8-12-F-23 · 3000 V/m at 1 metre with an input power of 2.5 kW
20.5 to 23.4 <1.15:1 10kW WG16 (WR90) UBR100
12 to 18 QSH-SL-12-18-F-23 · 3000 V/m at 1 metre with an input power of 2.1 kW
21.6 to 23.2 <1.5:1 10kW WG18 (WR62)
TYPICAL SPECIFICATIONS
Spiral AntennasMICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
EMAIL: [email protected] WEB: www.steatite.co.uk
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ABOUT OUR SPIRAL ANTENNAS
Steatite’s COTS cavity-backed spiral antennas cover the frequency range from 0.5 to 42 GHz and provide wideband performance with left or right hand circular polarisation.
The performance of the Steatite spiral antennas provides broad beamwidth with low squint, smooth radiation patterns and purity of circular polarisation. Typical airborne and ground based applications include 360° Direction Finding, Spectrum Management, RWR and ESM.
Steatite provides custom designed spiral antennas and if required, integrate lensed radomes to improve performance.
Frequency(GHz) Catalogue No. Gain
(dBiC)Beamwidth°
(3dB)VSWR
(Typical)Power
c.w. (W) Connector
0.5 to 8 QSP-RC-0.5-8-S-SG -6.5 to 1.4 dBiL 48 to 139 <1.4:1 2 SMA
0.5 to 22 QSP-RC-0.5-22-S-SG 0 to 5 60 to 115 <1.5:1 2 SMA
1 to 18 QSP-RC-1-18-S-SG-R 0 to 7 20 to 112 <2.5:1 2 SMA
2 to 18 QSP-RC-2-18-S-SG-R 1.3 to 5.3 53 to 142 <2.5:1 1 SMA
18 to 42 QSP-RC-18-42-K-SG 1 to 4.2 47 to 94 <2.5:1 2 K
18 to 42 QSP-RC-18-42-K-SG-L 2.2 to 6.2 30 to 80 <2.5:1 2 K
TYPICAL SPECIFICATIONS
Left-hand circular polarisation also available.
Sinuous AntennasMICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
Steatite AntennasCroft Business Park · Leominster · Herefordshire · HR6 0QF · UK
12
TEL: +44 (0)1568 612138
ABOUT OUR SINUOUS ANTENNAS
Steatite supplies COTS and custom designed Dual Linear and Dual Circular Polarised, sinuous antennas for Direction Finding, ELINT, RWR and ESM airborne, sea and ground based applications.
Steatite’s family of sinuous antennas simultaneously handle signals of any two orthogonal linear polarisations, and in some cases, simultaneous left and right handed circular polarisations. This provides intercept opportunities for a wide range of arbitrarily polarised signals, from devices also giving a wide bandwidth and broad beamwidth.
The sinuous antennas can also be used as feeds for reflector antennas where they give the advantage of a stable phase centre across the frequency band. As with other Steatite products, bespoke designs or modifications may be accommodated.
Frequency(GHz)
Catalogue Number Polarisation Power
c.w.(W)VSWR
(Typical)Gain (dBi)
Beamwidth(3dB)
Isolation (dB)
0.2 to 2 QSI-DL-0.2-2-S-SG Dual Linear 10 <3.0:1 -4.2 to 3.6 91.6 to 69° >35
0.4 to 2 QSI-DL-0.4-2-N-SG-R Dual Linear 2 <3.6:1 1.3 to 6.4 62 to 48° >34
0.5 to 3 QSI-DL-0.5-3-S-SG-R Dual Linear 2 <2:1 -0.2 to 5.8 56 to 96° >40
0.7 to 4 QSI-DL-0.7-4-S-SG Dual Linear 10 <2.6:1 0 to 4.1 55 to 94° >34
2 to 18 QSI-DL-2-18-S-SG Dual Linear 1 <3.2:1 -3.8 to 4.4 64 to 109° >32
2 to 24 QSI-DL-2-24-S-SG Dual Linear 2 <3:1 -8 to 3 145 to 60° >30
0.5 to 4 QSI-DC-0.5-4-S-SG-R Dual Circular 2 <1.5:1 -6 to 6 dBiC 62 to 102°
0.7 to 4 QSI-DC-0.7-4-S-SG Dual Circular 2 <1.4:1 -1 to 2.2 dBiC 102 to 56°
2 to 18 QSI-DC-2-18-S-SG-L Dual Circular 2 <2:1 -5.2 to 2.6 dBiC 42.6 to 95°
TYPICAL SPECIFICATIONS
SubsystemsMICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
ABOUT OUR SUBSYSTEMS
In-house microwave antenna design and engineering capability backed by antenna testing facilities, provides a comprehensive all weather antenna and subsystem solution to many demanding land, sea and airborne applications; EW & radar simulators, meteorological radar sensors, satellite monitoring, ELINT, COMINT and spectrum management systems.
Steatite uses leading commercial EM design software from CST Microwave® along with dedicated in-house algorithms, enabling it to analyse and optimise a wide range of microwave antenna, and subsystem designs.
The Company uses a mixture of design and analysis tools for its mechanical design including SolidWorks®, Cosmos and FEA. Steatite designs and manufactures subsystems by integrating combinations of wideband antennas using custom mounting structures, mounted to COTS and custom designed multi-axis all weather positioners, housed in custom designed RF transparent radomes up to 40 GHz.
EMAIL: [email protected] WEB: www.steatite.co.uk
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Spinning DF AntennasMICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
ABOUT OUR SPINNING DF ANTENNAS
Steatite provides COTS and custom designed 0.5 to 18 GHz direction finding and omnidirectional high performance spinning antenna subsystems.
The antennas are mounted on high speed rotating direct drive positioners with complex scan control and housed in RF-transparent, low-loss radomes. Cylindrical paraboloid reflectors are used, which provide a narrow azimuth beamwidth with broad elevation coverage.
Frequency (GHz)0.5 to 18
Catalogue No:QEL-ST-0.5-18-N-SG-R
1 to 18Catalogue No:
QEL-ST-1-18-S-HG-R
2 to 18Catalogue No:
QEL-ST-2-18-N-SG-R
Gain (dBi) -2 to 22.1 - DF & -2.4 to 6.4 - Omni
10 to 23 13 to 24
Antenna Type Reflector and Omni-directional
Cylindrical paraboloid Cylindrical paraboloid
Polarisation Horizontal, Vertical or +/- 45° Horizontal, Vertical or +/- 45° Horizontal, Vertical or +/- 45°
Azimuth beamwidth° 3.3 to 87 3 to 33 4 to 30
Elevation beamwidth° 15.3 to 81 - DF & 11 to 102 - Omni
42 to 20 20 to 35
Angular resolution° <0.1 <0.1 <0.1
VSWR (Typical) <2.5:1 - DF & <3.6:1 - Omni <2:1 <2.5:1
Rotational Velocity 200 rpm max 200 rpm max 200 rpm max
TYPICAL SPECIFICATIONS
Steatite AntennasCroft Business Park · Leominster · Herefordshire · HR6 0QF · UK
14
TEL: +44 (0)1568 612138
ConsultancyMICROWAVE ANTENNAS · SUBSYSTEMS · CONSULTANCY
WHAT STEATITE OFFERS Steatite provides microwave antenna consultancy in fields ranging from analysis of complex antenna subsystems to detailed studies of industrial processes. A team of highly qualified microwave, electronic and mechanical engineers are capable of solving a wide range of antenna related technical challenges.
Frequency Selective Surfaces (FSS): The Company has in-house software tools for the design of FSS and experience in the man-ufacture of FSS radomes and sub-reflectors.
Radar absorbent materials: Steatite has in-house expertise and applies state-of-the-art theory to the design of “optimal” RAM including electric and magnetic fields.
Stealth technology: Steatite has in-house expertise in the design of low radar cross-section antennas and in methods to reduce the radar cross-section of vehicle sub-structures.
Materials analysis and measurement: Theoretical studies into the microwave properties of single and multi-layer dielectric structures are carried out for such purposes as microwave windows, radomes and structural components.
ANTENNA RADOMES
Custom design and manufacture of wideband low-loss radomes up to 40 GHz.
MONOPULSE ANTENNAS
Used to precisely identify the direction of a radio signal. They consist of four closely spaced identical antennas whose outputs feed a device called a comparator.
DUAL LINEARLY POLARISED ANTENNAS
A number of antenna packages such as sinuous, quad ridged horn and reflector / feed combinations.
HOG HORN / DIAGONAL HORN ANTENNAS
Hog horns can be useful compact and rigid alterna-tives for standard pyramidal horns. Diagonal horns can be used to give very low sidelobes.
LENSED HORN ANTENNAS
Improved gain figure, ideal for materials testing where a high field strength is achievable over the desired spot size.
SLOT ARRAY ANTENNAS
The design and manufacture of both linear and planar waveguide slot array antennas.
EMAIL: [email protected] WEB: www.steatite.co.uk
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Steatite AntennasCroft Business ParkLeominsterHerefordshireHR6 0QF
T: +44 (0) 1568 612138www.steatite.co.ukEmail: [email protected]
We have distributors availableworldwide - please see our websitefor full details.
Tel: +44 (0)1568 617920